Question

Zad.1
Pomocy Zadania Pod kreską Zad.1
Oblicz

3/5 + 5/3 =
1/4 + 2/9=
7 3/4 +4 4/7=
4 2/3 + 2 5/8 =
4 1/5 - 2 5/9=
6 1/7 - 3 2/3=
2 3/4 - 1 1/7=
5 2/9 - 2 2/5=

Answer 1

3/5 + 5/3 =9/15+25/15=34/15=2 4/15
1/4 + 2/9=9/36+8/36=17/36
7 3/4 +4 4/7=217/28+128/28=345/28=12 9/28
4 2/3 + 2 5/8 =112/14+63/24=175/24=7 7/24
4 1/5 - 2 5/9=189/45-115/45=74/45=1 29/45
6 1/7 - 3 2/3=129/21-77/21=52/21=2 10/21
2 3/4 - 1 1/7=77/28-32/28=45/28=1 17/28
5 2/9 - 2 2/5=235/45-108/45=127/45=2 37/45